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该电路是一个简单的电压频率转换器,在所要求精度不太高时,可以采用该电路。晶体管T_1和T_2的工作方式类似于SCR。IC741第②脚虚接地。所以,当输入电压Vin(负)增长时,其输出随之线性增长。
This circuit is a simple voltage-to-frequency converter that can be used when the required accuracy is not high. Transistors T_1 and T_2 work in a similar manner to SCRs. IC741 ② feet virtual grounding. Therefore, when the input voltage Vin (negative) increases, its output increases linearly.